" If "A^(2)=/," then matrix "A" is "

If A^2 = I, then matrix A is Orthogonal matrix Idempotent matrix Involutory matrix Nilpotent matrix

If A is a square matrix for which a_(ij)=i^(2)-j^(2) , then matrix A is

If the elements of a 2 xx 2 matrix A are given as a _(i,j) = {{:(1",", i ne j),(0"," ,i = j ):}, then the matrix A is :

If a_(ij)=|2i + 3j^(2)|, then matrix A_(2xx2) = [a_(ij)] will be:

If matrix A=[a_(ij)]_(3xx2) and a_(ij)=(3i-2j)^(2) , then find matrix A.

A is a 2xx2 matrix, such that A={:[(a_(ij))]:} , where a_(ij)=2i-j+1 . The matrix A is

Consider the following statements in respect of the matrix A=[{:(0,1,2),(-1,0,-3),(-2,3,0):}] 1. The matrix A is skew-symmetric. 2. The matrix A is symmetric. 3. The matrix A is invertible. Which of the above statements is/are correct ?

If A is a 2xx2 unitary matrix then |A| is equal to

If A is a 2 xx 3 matrix and AB is a 2 xx 5 matrix, then B must be a